Breechblock: Difference between revisions

Revision as of 13:46, 26 December 2004

Revision as of 01:46, 27 December 2004

Line 1:

A '''breachblock''' is the part of the [[firearm action]] that closes the breach at the moment of fireringfiring. Most modern small firearms usesuse a rotating breachblock, better known as a bolt -, first used in manually operated [[bolt action]] weapons, but later made to work in automatic weapons. Some variations of non rotating breachblocks includesinclude:

*[[Blowback (arms)|blowback]] - in which the breachblock is closed by a powerful spring

*Delayed blowback - as found in many weapons from [[Heckler und Koch]]

*Tipping breachblocks - both selfactuatingself-actuating ([[AG-43 Ljungman]] is one example) and manually operated by a lever (Peabody rifles) or other means ([[Krag-Petersson]])

*Falling block (Sharps)

*Rolling block ([[Remington M1867|Remington]])